Reserve cost categories of $15, $30, $50, and $100 per pound U3O8


Reserve cost categories of $15, $30, $50, and $100 per pound U3O8
  Classification of uranium reserves estimated by using break-even cut-off grades that are calculated based on forward-operating costs of less than $15, $30, $50, and $100 per pound U3O8.
  U.S. Dept. of Energy, Energy Information Administration's Energy Glossary

Energy terms . 2014.